Display Type: Digital, Model Number: EZ-9909A, Display: Support backlight, TDS measurement range: 0-1000ppm, Waterproof rating: IP67, Display size: 33*24mm, Weight: 170g, Measuring range of table salinity: 0.00-25.00%, Accuracy: 0.01-5.00% (±0.1%), Battery: 3x 1.5V LR44 Button Battery (not includes), EC measuring range: 0-10000US/cm, Size and weight: 183*37*37mm(7.2*1.5*1.5in)/90g(3.2oz), 5 in 1 function: TDS/EC/PH/Salinity/Temperature Tester, The measurement range of sea water salinity: 10.1-200.0ppt., PH measurement range: 0.01-14.00pH, 5.01-25.00% (±1%).
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Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Yieryi 5 in 1 Digital Water Quality Meter TDS PH EC Salinity Temperature Tester for Spa Pools Aquariums Salt Freshwater Food | $22.25 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I don’t think there is an active coupon right now – at least in my database. I’m not sure about the price, coz I have only 1 record(s) in my database.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGBG77169, BG8ca8b3, BGherra, BGGines
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – EZ-9909A 5 in 1 TDS/EC/PH/Salinity/Temperature Meter ($-3)
Price history and price alert
Not enough data to show price history chart… $33.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).